2000 MOBILE PRODUCT GUIDE PART 2

XM-752EQX

2/1 Channel Amplifier/EQ
75 W x 2 Ch at 0.04% THD (4 ohms) 100 W x 2 Ch at 0.1% THD (2 ohms) 200 W x 1 at 0.1% THD (4 ohms) RCA and Speaker Level Inputs, RCA Output Regulated MOSFET Power Supply
5 Band +/-12 dB Adjustable EQ 50/200/800/3.2k/12.8 kHz Frequency Centers Variable 50-200 Hz Hi-Pass/Lo-Pass Filter Recessed Controls w/Level LEDs Heavy-Duty Connectors
Specifications Circuit System
OTL (output transformerless) Circuit Pulse Power Supply RCA Pin Jacks High Level Input Connector Speaker Terminals through out pin jacks 2-8 ohms (stereo) 4-8 ohms (when used as bridging amplifier) 75 W x 2 (20-20 kHz, 0.04% THD, at 4 ) 100 W x 2 (20-20 kHz, 0.1% THD, at 2 ) 200 W x 1 (20-20 kHz, 0.1% THD, at 4 ) 150 W x 2 (at 4 ) 400 W x 1 (at 4 ) 50 Hz, 200 Hz, 800 Hz, 3.2 kHz, 12.8 kHz 12 dB 5-100 Hz (+0/-3 dB) 0.005% or less (at 1 kHz, 4 ) 0.2-4.0 V (RCA pin jack) 0.4-8.0 V (high level input) 50-200 Hz, -12 dB/oct 50-200 Hz, -12 dB/oct 12 V DC Car Battery (negative ground) 10.5-16 V At Rated Output: 20 A Remote Input: 1.5 mA Approx. 282 x 55 x 220 mm (111/8 x 21/4 x 83/4 in.) (not incl. projecting parts and controls) Approx. 2.2 kg (4 lb. 14 oz.) (not including accessories) Mounting Screws (4); Terminal Cap (1)

Inputs

Outputs Speaker Impedance
Rated Outputs (at 14.4 VDC)
Maximum Output Equalizer Frequency Response Harmonic Distortion Input Level Adjustment Range High-Pass Filter Low-Pass Filter Power Requirements Power Supply Voltage Current Drain
Dimensions (w/h/d) Weight Supplied Accessories
Design and specifications subject to change without notice.

2/1 Channel Amplifier

Stereo Power Amplifier

Operating Instructions

Owner's Record
The model Record and serial numbers are located on the bottom below. your Sony dealer regarding this product. of the unit. the serial number in the space whenever provided Refer to these numbers you call upon

Model No. XM-?52EQX

Serial No.

XM-752EQX

Sony Corporation @1999 Printed in USA

Connections

Caution
Before making any connections, disconnect the ground terminal of the car battery to avoid short circuits. Be sure to use speakers with an adequate power rating. If you use small capacity speakers, they may be damaged. Do not connect the e terminal of the speaker system to the car chassis, and do not connect the _ terminal of the right speaker with that of the left speaker. Install the input and output cords away from the power supply lead as running them close together can generate some interference noise. This unit is a high-power amplifier. Therefore, it may not perform to its full potential if used with the speaker cords supplied with the car. If your car is equipped with a computer system for navigation or for some other purpose, do not to remove the ground wire from the car battery. If you disconnect the wire, the computer memory may be erased. To avoid short circuits when making connections, disconnect the +12 V power supply lead until all the other leads have been connected.
Make the terminal connections as illustrated

below.

a_y_oom.chto_

*asd_soneyd,_

* Thetor_e,,,_lue_ould

_._ff_an

1N-re.
Pass the leads through the cap, connect the leads, then cover the terminals with the cap.

Connection

to a rnetal surface of the car

(REM OU_

Car audio

+12 V car battery

Notes on the power supply G_;ectthe+12Vpower_pplyleadonlyal_rallthe Be sure to connect the ground lead of the unit securely to a metal surface of the car. A loose connection may cause the amplifier malfunction. to
Bes_re_o_m_tt_r_noteo_,ztml/eado[_e_az'az_o Whenu_x_ac_d_owi_outap_zoe_:_onthe amplifier, cotm_tthe_input_rmiml(REMOTE)

_am_ryg_ra_

Usa_pow_supfifleadv_thafu_atta:t_(3OA). P/acetJze_thepov, ersu_k_das_asposs_5/e

to_ca_bare_

Makest_ed]atthe_ads_3becol_tothe GNDterminalso[tJfisunit_velymustbelarger thanl O-Gauge (AW_- l O)orwit_these_omlareao[ marethgnSmm Whaou._eapti_alRC-46powerar_]ff_r + 12 Vend
a_r_ng_rd, a_ultt_al_n_n_,

2-Speaker

System

I LINE OUT

Left speaker (rain. 2_.) Ford_llsontJ]es_i.ngsofsw_chesandax_trols, rderto "L_cationandFunction_ConUob. _

INPtrr

Right speaker (min. 2_)

As a Monaural

Amplifier
LINE OUT Left channel Right channel _ INPUT

L INPUT ! 0 I

Right speaker

(rain. 4_1)

Ford_ai_n_afs_td_dm.',uds. rd_to "Lo_ti_ andFurr_ndCm_ro/s,"
Note Makesurethatthelmeoutput,rromthecaraudiois connectedtothejakmarked "I.(MONO) "ontt_

As the Monaural

for a Subwoofer

I LINE OUT Car audio

Subwoofer

(min. 4_)

Ford_ilsonthes_ir_dswitcl_andcontro_ referto "Lo_t_andFur_t_no[Cont, m_. " Note l[_uwishtov_asubv_rasammauralst_er,

am_t_above.

signa_th_ubv_llbetl_m_at_n_
bo_tightamtte_ou_ut_gn_s.

OUtl)ut

channels

Cm audio

L LINE OUT
speakers (rain. 2.Q) Fullrange

Subwoofers

(rain. 2a)
Use the THROUGH OUT terminal when you install more amplifiers. In this case, the signals are output as they are input. (EQUALIZER, HPF, and LPF do not work.)
Ama_numar3_/_e_canbem_dto#_
THROUGHOUTtermi_I. Ifyouconnectmore than 3_,itmaycat_prob/omsuchas Highlevellnputconm_ionmnnotu_THROUGH

Four output

L UNE OUT
OOO0 Full range speakers (rain. 2_)

Subwoofers (rain. 2_)

Fard_ailsontt_a_gsofswit_cantrols, rderto _!_c.atkmmdF_aionofC_trals. " Note Intl_sy_an, tl_thesubwo_crswillbe _'dledbythe_ra_iofadereo_.

Dual Mode

a Bridged

Subwoofer)

ILINE OUT Car audio

Left speaker

$ubwoofer
Table of crossover values for 6 dE/octave (4 ohms)
CrosSover Frequency unit: Hz 1000 L (coil)* unit: mH 12.7 8.2 6.2 4.7 4,2 3.3 2.4 1.6 1.0 0.8 0.6 C1/C2 (capacitor)* unit: pF 39

* (not supplied)

Wlx_u_gpas_veamsove-n_,,_r_inanrdn-speaker systemrag_that_'s_
notlov_-t_ntho_tablefor_Bunit. Whmlhlsla_a12tk_ci_wherebotha dx)kean&_pacitor_eusedinstries_of_'ma_'uit, be
sure_oconaectthespeakers. Whmneithera_e
there_-va_areawill_rease_ti_yremltmg_ a_.cb-cuit-likesJtuatJoncalJsl_thea_rnplJfm'to

Direct speaker

cord onnec'tion
Left speaker Car audio Right speaker 1

_Grav White

Bl_k-sthped cord
Car audio Bit Left speaker I
,Co_] diameter : 0.3 - 1.25 mm (A_NG 22 - 16) 11 (_A_)

Unit :mm (in.)

High Level

(2-SpeakerSystem)

Left speaker output
Input cord [Not supplied)
Right speaker output Sortie haut-parleur droit

Black-stripedcord

(rain. 2_)

(rain. 2_2)

For details on thesettinss ofswitches and controls, refer to "Location and Function of Controls."

Hi qh Level

(Asa Monaural

Amplifier)

Bllck-stdped cord

Right speake output

Black.stdpeal_d"
/ input cord (Not supplied} J
For details on the settings o[switche_ and conWoL_ re[er to "Location and Function ol"Contzois. _

for a Subwoofer)

(As a Monaural
Left speaker Car audio Right speaker
Input r.on:l (Not supplied)
Forde_n t_'s_ttin_swit ch_andconuo_ reftrroLocationar_dFm_i_o[('ontro[_ "

Installation

Before Installation
Mount the unit either inside the trunk or under a
Choose the mounting location carefully so that the unit will not interfere with the normal movements of the driver, and where it will not be exposed to direct sunlight or hot air from the heater, Do not install the unit under the floor carpet, where heat dissipation from the unit would be considerably impaired. First, place the unit where you plan to install it, and mark the positions of the four screw holes on the surface of the mounting board (not supplied). Then drill the holes approximately 3 millimeters (mm) in diameter and mount the unit onto the board with the supplied mounting screws. The supplied mounting screws are 15 mm long. Therefore, make sure that the mounting board is thicker than 15 mm.

e 6 /,)

"t -----z

Unit :mm(in.)

220 18a/4l

Precaution

This unit is designed for negative ground 12V DC operation only. Use speakers with an impedance of 2 to 8 ohms (4 to 8 ohms when used as a bridging amplifier). Do not connect any active speakers (with built-in amplifiers) to the speaker terminals of the unit. Doing so may damage the active speakers. Avoid installing the unit in areas subject to: -- high temperatures such as from direct sunlight or hot air from the heater -- rain or moisture -- dust or dirt. If your car is parked in direct sunlight and there is a considerable rise in temperature inside the car. allow the unit to cool down before use. When installing the unit horizontally, be sure not to cover the fins with the floor carpet etc. If this unit is placed too close to the car radio, interference may occur. In this case, relocate the amplifier away from the car radio. If no power is being supplied to the cassette player or tuner, check the cormectioes. This power amplifier employs a protection circuit* to protect the transistors and speakers ff the amplifier malfunctions. Do not attempt to test the protection circuit by covering the heat sink or connecting improper loads. Do not use the unit on a weak battery as its optimum performance depends on a good power supply. For safety reasons, keep your car audio volume moderate so that you can stiff hear sounds outside your car.

Fuse Replacement

If the fuse blows, check the power connection and replace the fuse. If the fuse blows again after replacement, there may be an internal malfunction. In such a case, consult your nearest Sony dealer.

Warning

When replacing the fuse, be sure to use one matching the amperage stated above the fuse holder. Never use a fuse with an amperage rating exceeding the one supplied with the unit as this could damage the unit.

*Protection

dt*uit circuit that
This amplil_er is provided with a protection operates in the following cases: -- when the unit is overheated -- when a DC current is genemted
-- when the speaker terminals are short-circuited. The color of the POWER/PROTECTOR indicator will change from green to red, and the unit will shut down. If this happens, turn off the connected equipment, take out the cassette tape or disc, and determine the cause of the malfunction. If the amplifier has overheated, wait until the unit cools down be[o_ using again.
If you have any questions or problems concerning your unit that are not covered in this manual, please consult your nearest Sony dealer.

Troubleshooting Guide

The following unit. Before checklist will assist in the correction the checklist below, of most problems which you may encounter and operating procedures. with your going through refer to the connection
Problem The POWER/PROTECTOR indicator does not light up.
Cause/Solution The fuse is blown. --+ Replace the fuse with a new one. The ground lead is not secucely connected. ---+Fasten the ground lead securely to a metal surface of the car.
The voltage going Into the remote terminal is too low. The connected master unit is not turned on. --* Turn on the master unit. The system employs too many amplihers. ---* Use a relay. Check the battery voltage The OVER CURRENT indicator up in red. The OFFSET indicator lights lights (10.5 - 16 V). are short-circuited. ---*
Turn off the power switch. The speaker outputs Rectify the cause of the short-circuit. Turn off the power switch. are securely connected,

up in red.

Make sm'e the speaker cord and ground
The THERMAL indicator red. Alternator noise is heard.

lights up in

The unit heats up abnormally. Use speakers with suitable impedance. Make sure to place the unit in a well ventilated The power connecting leads are installed ---* Keep the leads away from the cords. The ground lead is not securely connected. securely to a metal point of the car. Negative speaker leads are touching away fi'om the car chassis.

location.

too close to the RCA pin cords.

--* Fasten the ground

the car chassis. _

Keep the leads

The sound is muffled, The sound is too low. not

The FILTER selector

switch
is set to the "LPF" position. is set to the "MIN _ position.
The LEVEL adjustment The DIRECT switch

control

HPF, LPF, end EQUALIZER does work.

is set to ON.

Specifications
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION 75 watts per channel minimum 4 ohms, both channels driven than 0.04% Committee

Circuit system

continuous average power into from 20 Hz to 20 kHz with no more per Car Audio Ad Hoc
total harmonic standards.

distortion

Other Specifications
OTL (output transformerless) circuit Pulse power supply RCA pin jacks High level input connector Speaker terminals Through out pin jacks 2 - 8 _ (stereo) 4 - 8 l_ (when used as a bridging amplifier) Maximum outputs 1S0 watts x 2 (at 4 _) 400 watts (monaural. at 4 _) Rated outputs (supply voltage at 14.4 V) 75 watts per channel (20 Hz 20 kHz. 0.04 % THD. at 4 _) 100 watts per channel (20 Hz 20 kHz, 0.1% THD, at 2 D) 200 watts (monaural) (20 Hz 20 kHz, 0.1% THD, at 4 l)) Frequency response 5 Hz - 100 kHz (_dg) Harmonic distortion 0.005 % or less (at lkHz, 4 _) Input level adjustment range 0.2 - 4.0 V (RCA pin jacks) 8.4 - 8.0 V (High level inpu0 High-pass Low-pass Equalizer filter filter 50 - 200 Hz, -12 dB/nct 50 - 200 Hz, -12 dB/nct 50 Hz, 200 Hz, 800 Hz, 3.2 kHz, 12,8kHz 12 dB 12 V DC car battery (negative ground) 10.5- 16V At rated output: 20 A Remote input: 1.5 mA Approx. 220 mm (10 I/h/4 83/4 in.) (I/h/p) not incl. projecting parts and controls Approx. 2.2 kg (4 lb. 14 oz. ) not incl. accessories Mounting screws Terminal cap (I) Optional accessories Connectin 8 cord for power amplifier RC-46 Design and specifications without notice. are subject to change (4),
Inputs Outputs Speaker impedance
Power requirements Power supply voltage Current drain

Dimensions

Mass Supplied accessories

Features

Maximum power output of 150 watts per channel (at 4 ohms). This unit can be used as a monaural amplifier with a maximum output of 400 watts. Direct connections can be made with the speaker outputs of your car audio if it is not equipped with the line output (High tevel input connection). Low-pass filter, high-pass filter, and five band equalizer circuit are built-in. The DIRECTswitch can be used to bypass the low-pass filter, high-pass filter, and equalizer circuit for more enjoyable high quality sound. You can visually confirm the output level of both the left and right sides with the power level indicator. Dual mode connection possible for a multispeaker system.
Protection circuit and indicator provided. Pulse power supply* for stable, regulated output power.
Pulse power supply which converts
This unit has a built-in _ower regulator
the power supplied by the DC 12 V car battery into high speed pulses using a semiconductor switch. Tl_se pulses are stepped up by the built-in pulse transformer and separated into both positive and negative power supplies before being converted into direct current again. This is to regulate fluctuating voltage from the car battery. This light weight power supply system provides a highly efficient power supply with a low impedance output.
Location and Function of Controls
[] POWER/PROTECTOR indicator OVER CURRENT lights up green during normal operation. The color will change from green to red when receiving a powerful signal. OFF SET lights up green during normal operation. The color will change from green to red when the voltage going out to the speaker terminal or the pin jack is too high. THERMAL lights up green during normal operation. The color will change from green to red when the temperature rises to an unsafe level. The color will return to green when the temperature returns to normal. Power level indicator Indicates the output levels of both the left and right sides. The scale is calibrated for use with 4 ohms speakers. LEVELadjustment control The input level can be adjusted with this control when using source equipment made by other manufacturers. Turn it to MAX when the output level of the car audio seems low. To reduce noise, turn the LEVEL control (gain) of the amplifer to IVIINand the volume of the car audio up. DIRECTswitch When the DIRECT switch is set to ON, the signal does not go through the low-pass filter, high-pass filter and equalizer circuit. EQUAUZER level control You can change the settings of the five band (50 Hz, 200 Hz, 800 Hz, 3,2 kHz, 12.8 kHz ) equalizer. Cut-off frequency adjustment control Sets the cut-off frequency (50-200 Hz) for the low-pass or high-pass filters. FILTERselector switch When the switch is in the LPF position, the filter is set to low-pass. When in the HPF position, the filter is set to high-pass. When the DIRECT switch is set to ON, these filters do not work.

settings for each system configuration

[]pOWEWPROTEC_ []

L I _.,,_,07_ ;

" ,

, I r.

Equalizer/Egaliseur dB

+11 +11 +1: +9 +S +3 +0 -3.S 4 "12 "lS ,111
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l l laBan I JH II JJ I I I I

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I , I I , I I ' J J I J Ji I J li I I li J I li

Switch

llO01K

2K 32KfK

FILTER selector switch When the switch is tn the LPF position, the filter is set to low-pass. When in the HPF position, the filter is set to high-pass. When the DIRECT switch is set to ON, these filters do not work.
: I ,,,,,,"_"' x:/: :"',,'_ , , , ,,,,, iHn
I 20 , I 100 20Q i+li S00 I_lg gg
I '_',,,,.k'"'" i , ,+,,H,

_t( IIIIIH 3+2KSK 12J

"1110
(Change the switch positions according to the configuration.)

FREQUENCY

System (refer to "Connections") 2-speaker system As a MonauralAmplifier Dual Mode System
As the Monaural Ampllifier for a Subwoofer

DIRECT ON. OFF

OFF OFF

FILTER -OFF

LPF HPF
-40 _* _0 r150HL2OOHz_.50
Cut-off frequency/Frequence de coupure dB

I I "17-rr i i i i

, , ,+

t l. H

H+GH PASS

_J_L__U

2+waysystem

* desirable level Note

Full range speakers

Sub woofers

"20

,,50Hz/q+ L fj/_. 1

, , _,
"-,d,. --_--rn-r_-n i i i i i i i i i i 114111
i i i.. _I _ _ _I__ i i i i i i i i _I Jp r i i i

I 4o _-F'I.

._. - - * - -k- 4- _- 4 __ i i i i _ i i i i i t i i i i tl I i i i il

,--+--,--,-_i-,-,

If you do not use the low-pass filter, high-pass filter and equalizer circuit, set the DIRECT to ON [or more enjoyable high quality sound.